Our books are now sold at our cost of on-demand printing, to save vision for everyone. And the ebook is available for the credit card transaction
minimum fee, of 50 cents.

If this message and this book helps you, and you wish to make a tax-deductible donation to our 501(c)(3) nonprofit organization, to help spread this message and fund further research, please use thedonation formand/or thecontact formon this site. Thank you!

Full-Color, Standard Print, Physical Book

$26.63

Sold for Printing Cost Only!

*This is the recommended version, because the images and graphs are in full-color, making the entire book easier to read and understand. With a physical book, it’s easier to make reference to it again and again!

Large Print, Black & White Print, Physical Book

$14.37

Sold for Printing Cost Only!

*This is the version of book recommended for those who, because of reduced vision already, need large print. This book is only available in black and white, it is 8.5 x 11 inches and the text is mostly size 15 font, which should be readable to most people with moderately low vision.